MCQ
In sickle cell anaemia, RBC becomes:
- ASickle shaped
- BMore flexible and strong
- CNo change in shape or size
- DIs genetically inherited
Explanation:
Sickle cell disease is an inherited blood disorder that affects red blood cells. People with the sickle cell disease have red blood cells that contain mostly haemoglobin S, an abnormal type of haemoglobin. Sometimes, these red blood cells become sickle-shaped (crescent shaped) and have difficulty passing through small blood vessels.
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$A$ - number of chromosomes in endosperm
$B$ - number of chromosomes in egg cell
$C$ - number of chromosomes in polar nuclei
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